Link is the main charectar Shigeru Miyamoto's classic series "Zelda". He was named link because Shiggy thought of him as the "Link" between the player and the game world. He is a Hylian, an elfish type charcetar from the land of hyrule. In most games, he is young (looks about 12, but he becomes an adult for Half of OOT), with golden-blond or brown hair, and wears a Green tunic. Except for OOT and MM, link is reborn in a diffrent time and storyline in every game (as is Princess Zelda)
and prevents ganondorf, the evil wizard guy who was the only male born amoung the Geurdos, from stealing the triforce. The storylines do relate to each other tho (espically in Wind Waker)

The baddest motherfucker to ever wield a sword and shield. Wears a long green cap and has the the coolest tunic in the universe and starred in the best game ever, The Legend of Zelda: Ocarina of Time. Also possesses the Triforce piece of Courage. Saves the land of Hyrule on a daily basis.

A Hero wielding a master sword who harnesses the power and restores order to Hyrule and saves Princess Zelda from the evil Ganondorf.
Stir the Wind Fish
Free the descendents of the Seven Sages
Wake Princess Zelda
And begin your adventure...

The fella who kicks some serious booty in the game Legend Of Zelda.
The man with the plan to stop the evil.